Background: Time management skills are thought to enhance positive students' academic output. Objective: The aim of the study is to find the impact of time management on the academic performance of students of Faculty of Medicine, Benha University. Methods: A cross-sectional study was conducted among undergraduate medical students through using online questionnaire of 22 questions, which was prepared on the basis of time self-management, awareness, management, preferences, and performance domains and the question were valued by 5 levels Likert Scale. A stratified random sample technique was used and data were analyzed by the Pearson chi-square test to find association between the time management and grade point average (GPA) achieved. Results: 60.8% of participants strongly agreed (17.1%) or agreed (43.7%) that their academic performance was degraded due to poor planning, 61.6% of the studied group strongly agreed (20.3%) or agreed (41.3%) that they prefer to manage their time daily and 45.1% of the studied group strongly agreed (21.8%) or agreed (23.3%) that they often tend to postpone their tasks, 44.9% of the studied group strongly agreed (21.2%) or agreed (23.7%) that they priorities between various competing tasks, whereas 39%, 42.2%, 40.3% didn't have a clearly defined plan for each week's, month's and year's tasks respectively and the majority of them (80.7%) declared that their time management skill needs more improvement Conclusions: To improve academic achievements, academic advisors, seminars and workshops, counselors and psychologists can assist students to improve their time management skills.